My biggest issues with it are:
1. Drives down the middle of the street on residential streets with no lane markings, rather than staying to right side of the street as humans do.
2. Takes too long to make a decision when making turns in traffic, thus cars start backing up behind me. Out of courtesy to them, I take over driving
3. Get in the car pool lane on the freeway and it almost instantly turns on the left blinker, despite being up against a wall to the left.
4. Still wants to turn left directly in front of oncoming traffic
5. Still constantly misses right turns, even when there's a designated right turn lane with an arrow to tell it where it needs to go.
6. Constantly changes lanes for no apparent reason. Will move into the right lane despite coming up on a place where I have to turn left.
7. Takes the speed setting to literally. If you set it for 10 MPH over the posted speed limit, it then takes curves at the posted speed limit rather than slowing down to a safe speed for the curve.
8. Comes very close to knocking the curbs down, especially in roundabout intersections.
9. When it doesn't want to turn left in the carpool lane, half the time, it wants to get out of the carpool lane for no reason (despite carpool lane being activated in the car).
10. Was the 80 MPH limit, at least they fixed that. So. 9 more to go and we'll have a pretty good system.
And yes, most of the above are in higher density areas. Car does perform much better when in more rural areas. And even better when I have no cars behind me. I'm just one that will not allow my testing of beta software for Tesla interfere with other drivers on the road. So pretty much any time someone gets behind me, I do have to take over as the car itself is not driving like a human would and is impeding the flow of traffic behind.